People won’t know where the message comes from, they’ll just hear your voice as though you were standing next to them. Everyone hears it at the same time. The message is not translated into anyone’s native language, everyone hears it exactly as you say it. The maximum length is 6 of your breaths.
Violence is not the answer. Start loving your differences, start working together so solve your problems. Send anybody advocating violence to the frontline of any battle including leaders and politicians.
I’m not saying it doesn’t work. I’m saying they should look to other solutions that don’t involve violence.